Churn.



narran Asrafras narrar onirica.

LEWIS L. RANDALL, 0F OTTUMWA, IOWA.

CHURN.

' Specification of Letters Patent.

Patented Juiy 4., 1916.

Application filed August 18, 1911. Serial No. 644,895.

'as will enable others skilled in the art to which it appertains to make and use the' same.

This invention is a churn having-for its .object to provide an economical device capable of operating upon a large amount of cream for the purpose of producing butter.

and a removable cover at the top of the revceptacle for the purpose of attaining access to the interior thereof. The receptacle is' mounted upon a suitable framework and is provided with means for imparting rotary motion to said receptacle.

In the accompanying drawings, I have illustrated a preferred embodiment of the invention wherein like reference characters denote similar parts in all the figures.

Figure l is a side elevation of the churn mounted upon a support. Fig. 2 is a vertical sectional view through the receptacle member. Fig. 3 is a front elevation of the dasher. Fig". 4 is a plan view of the churnA and support. Fig. 5 is a detail view of the plate having a stub shaft for the receptacle.

Fig. 6 discloses staves separated by a metallic strip.

The receptacle for cream, and the like, consists of two semi-cylindrical end sections A, B, and a central section C, which latter section is provided with substantially straight walls. The receptacle is preferably constructed of wood, and I have found it desirable to make it of cedar or white oak wood.

The sections A, B are substantially equal v in contour to an ordinary barrel or keg which has been split longitudinally into approximately equal halves. The staves a, b,

comprising these sections A, B, are ofgreatest width at or near the central portion of their length, and are provided with beveled edges, when necessary,to produce the proper curvature or contour to the receptacle, as is the usual construction of barrels or kegs (see Fig. 4). vThe staves c of the central section C, however, are substantially the same width throughout their length, and

the edges of these staves are substantially at right angles to the face thereof and not bev-V eled as is the case with the staves a, b. These staves a, b, o', when constructed of certain woods, such as cedar, maybe separated by a metal strip 71", such as aluminium for the purpose of maintaining the receptacle water tight, see Fig.` 6. 'All yof the staves are bound together to retain the receptacle in operative form by any'suitable means such as the hoops y. It may be necessary to construct staves a', b", which separate the central section C from the end sections w, b, of a little different shape from the other staves comprising the receptacle, as is shown in Fig. 2.

Access to the interior of the receptacle is attained through an opening in the end thereof, the edges being provided with suitable means for producing a water tight joint with a removable cover member D.

This'cover member is shown in Figs. 2 and 4.-

The cover D is retained in position by leaf springs E (Fig. 4'), which are pivoted centrally, at e, for the purpose of permitting the free ends of the spring to engage suitable means (not shown) in the ends of the receptacle, for the vpurpose of retaining the springs under tension.

yThe receptacle is mounted upon a suitable frame comprising base members F, connected with upright converging members F, said members F meeting at F2 to support a journal bearing for the receptacle.

The receptacle is provided with a plate G, (Figs. 1 and 5) upon each sidethereof, said plate being secured to the central section C. Each of these plates G is provided with a suitable stub-shaft adapted to rotate in the journal bearing F2, while on oney of said stub shafts there is positioned a crank arm H for the purpose of revolving the receptacle upon its frame.

Interiorly of the receptacle there is positioned a plurality of dashers J, K, (Figs. 2 and) which are united at substantially the central portion thereof by a rod L. The

dashers K are retained in ixed relation to the end walls of the churn, when it is in operation, by any suitable means, such as the tongues 7c engaging grooves or slots in the bottom of the receptacle, and its removable top member, respectively. The dashers J are pivotally mounted upon the rod L, and when cream is placed Within the receptacle these dashers occupy substantially the position shown in Fig. 2. These dashers J are capable of considerable movement but are prevented from completely revolving within the receptacle by the cross stave M, which is united to the fixed dashers K. rI`he dashers J, K, are removably positioned within the receptacle, as will be understood.

In the preferred form of the device, the openin x is provided with a flanged casting P itting the sides of the opening. This casting is retained in position by having means which fit into the Croze on either side Y of the central section C. rIhis croze is simil-ar to the ordinary croze. of a barrel with the exception that in the present device it is lstraight to correspond to the central section,

instead of curved. To make the cover memv-ber D water tight, VI employ a tubular rubber packing which is retained in position on the flange of the casting, to conform to the lshape thereof, by any suitable non-rusting cle, the edges of the cover D will be forced into engagement with the flanged casting and compress the tubular packing, thereby forming a water tight joint.

In operation, the desired quantity of cream is placed Within the receptacle, the dashers J and K brought into substantial alinement with each other and passed through the opening into the receptacle until the tongues 7s engage the slots in one l "end thereof, whereupon dashers J are free to assume their horizontal position. rllhe cover member D 1s new placed 1n position to close the opening m, and the springs E turned upon their pivot c for the purpose of locking the cover in position. The receptacle may now be revolved upon its frame by turning the crank I-I causing the cream to pass into contact with, and between, the fixed and movable dashers, J, K, respectively, as the liquid rushes from end to end of the receptacle. When butter has been produced, the parts are removable, as will be readily understood by those skilled in the art.

Having thus fully described my invention what I desire to claim as new and secure by Letters Patent is l. In a churn, a frame, a receptacle comprising two semi-cylindrical end members and a substantially straight central member, a removable cover positioned at one end of said receptacle and means for completely revolving said receptacle end for end with reference to said frame.

2. In a churn, a frame, a substantially elliptical receptacle mounted for rotative movement thereon, a plurality of dashers retained in fixed relation to said receptacle, a plurality of other dashers, capable of movement with reference to said receptacle, and means for revolving said receptacle on said frame. Y

3. In a churn, a frame, a receptacle comprising two semi-cylindrical end members having tapering staves, a central member having substantially straight rectangular staves, means for retaining said staves in an operative position, a removable dasher mounted in the central member, a removable cover mounted between the semi-cylindrical end members, and means for revolving said receptacle end for end upon the frame.

4. In a churn, a frame, a receptacle comprising two cylindrical end members having tapering staves, a cent-ral member having substantially straight rectangular staves, metallic strips positioned between said staves, means for retaining the staves in an operative position, a removable dasher mounted within the central member, a removable cover for said central member, said oever having resilient retaining means adapted to engage the central member, and means for revolving the receptacle end for end upon said frame.

5. In a churn, a frame, a substantially elliptical receptacle having a straight central member, a removable cover for said central member, a removable dasher mounted withinV said central member, said dasher comprising a series ofv fixed members and a series of movable members, said fixed and movable members being connected by a central rod, a stay for connecting said fixed dashers and for limit-ing the movement of the movable dashers, and means for revolving said receptacle end for end upon the frame.

In testimony whereof, I affix my signature in the presence of two witnesses.

LEWIS L. RANDALL.

Vitnesses:

J. L. SHEPHERD, J. C. WESTERMAN.

Qopie of this patent may be 'obtained for ve cents each, by addressing the Commissioner oi Patente.

Wallington, n. c." 

